CN215653887U - Forced circulation rectification system - Google Patents
Forced circulation rectification system Download PDFInfo
- Publication number
- CN215653887U CN215653887U CN202122172453.0U CN202122172453U CN215653887U CN 215653887 U CN215653887 U CN 215653887U CN 202122172453 U CN202122172453 U CN 202122172453U CN 215653887 U CN215653887 U CN 215653887U
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- connecting pipe
- heater
- rectifying column
- forced circulation
- rectification system
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- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 abstract description 90
- 238000002309 gasification Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004821 distillation Methods 0.000 abstract description 3
- 239000003595 mist Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 9
- 239000000110 cooling liquid Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a forced circulation rectification system which comprises a supporting table, wherein a rectification tower is arranged at the upper end of the supporting table, a first connecting pipe is connected to the bottom of the rectification tower, a circulating pump is connected to the tail end of the first connecting pipe, a second connecting pipe is arranged on the surface of the circulating pump, and a heater is connected to the tail end of the second connecting pipe. According to the forced circulation rectification system, the spray head is arranged in the heater, the crude acetic anhydride enters the heater in a filament or mist form, and the crude acetic anhydride can be uniformly dispersed in the heater by matching with a plurality of groups of channels in the heater, so that the crude acetic anhydride can be heated, and the gasification effect of the acetic anhydride can be improved; the gasified acetic anhydride can be rapidly condensed into liquid by the matching of the condenser and the circulating pipeline, and then enters the rectifying tower again for distillation, so that the acetic anhydride can be circularly rectified for many times, the rectification of the acetic anhydride can be more thorough, and the purity of the acetic anhydride is improved.
Description
Technical Field
The utility model relates to the technical field of acetic anhydride production, in particular to a forced circulation rectification system.
Background
Acetic anhydride, acetic anhydride is an organic matter, also known as acetic anhydride, and is widely applied to industries such as manufacturing, medicine and food, etc., in the production process of the acetic anhydride, a rectification purification device is needed to refine and purify a prepared crude product of the acetic anhydride, and light components in a liquid phase are transferred to a gas phase and heavy components in the gas phase are transferred to the liquid phase by utilizing different volatility of each component in a mixture in the crude product, so that the purposes of separation and purification are realized.
However, when the existing rectification equipment is used, because the liquid in the heating pipeline inside the heater is not uniformly distributed, the uniform gasification of the liquid is influenced, the rectification effect of the crude acetic anhydride is poor, and the rectification efficiency is low, so that a forced circulation rectification system is provided.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a forced circulation rectification system which can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a forced circulation rectification system, includes a supporting bench, the upper end of propping up supporting bench is provided with the rectifying column, the feed inlet has been seted up on the surface of rectifying column, and is connected with first connecting pipe in the bottom of rectifying column, the end-to-end connection of first connecting pipe has the circulating pump, the surface of circulating pump is provided with the second connecting pipe, the end-to-end connection of second connecting pipe has the heater, the inside of heater is provided with the filling layer, the inside of filling layer is provided with the passageway, and is close to top department in the inside of heater and be connected with the shower nozzle, the lower extreme of heater is connected with the third connecting pipe, third connecting pipe and rectifying column intercommunication.
Preferably, the upper end of the heater is connected with a second connecting pipe, the second connecting pipe extends to the inner side of the heater, the spray head is fixedly connected with the inner wall of the heater and is communicated with the second connecting pipe, the lower end of the heater is connected with a third connecting pipe, the filling layer is filled with a material with better heat conductivity, the surface of the filling layer is located at the lower end of the spray head and is of an arc inclined plane structure, and the channel penetrates through the interior of the filling layer.
Preferably, a cleaning port is formed in the surface of the third connecting pipe, which is close to the joint of the heater, and extends into the third connecting pipe in a penetrating manner and is communicated with the third connecting pipe, and an end cover is movably connected to the surface of the lower end of the cleaning port.
Preferably, the feed inlet is fixedly connected to the outer surface of the rectifying tower and penetrates through the rectifying tower to extend into the rectifying tower, the first connecting pipe is fixedly connected to the bottom of the rectifying tower and penetrates through the inner side of the rectifying tower to be connected with a safety valve on the surface of the first connecting pipe, and the first connecting pipe is communicated with the second connecting pipe through a circulating pump.
Preferably, the top of rectifying column is connected with the outlet duct, and the outlet duct runs through the inboard that extends to the rectifying column to with rectifying column fixed connection, the end-to-end connection of outlet duct has the condenser, the upper end and the lower extreme of condenser are connected with coolant liquid import and coolant liquid export respectively, coolant liquid import and coolant liquid export all run through the inside that extends to the condenser, and the three intercommunication.
Preferably, the lower extreme of condenser is connected with the circulating line, the end and the rectifying column of circulating line are connected, and both communicate with each other, the lower extreme department that the surface of circulating line is close to the condenser is connected with the discharging pipe, the discharging pipe runs through the circulating line.
Preferably, the surfaces of the discharge pipe and the circulation pipeline are both provided with safety valves, and the safety valves corresponding to the surface of the circulation pipeline are arranged at the lower end close to the discharge pipe.
Preferably, the rectifying tower, the second connecting pipe, the heater and the third connecting pipe are all embedded on the inner side of the support platform and are fixedly connected with the support platform.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the utility model, the spray head is arranged in the heater, the crude acetic anhydride enters the heater in a filament or mist form, and the crude acetic anhydride can be uniformly dispersed in the heater by matching with a plurality of groups of channels in the heater, so that the crude acetic anhydride can be heated, and the gasification effect of the acetic anhydride can be improved.
(2) In the utility model, the gasified acetic anhydride can be rapidly condensed into liquid state by the matching of the condenser and the circulating pipeline, and then enters the rectifying tower again for distillation, so that the acetic anhydride can be circularly rectified for many times, the acetic anhydride can be rectified more thoroughly, and the purity of the acetic anhydride is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a forced circulation rectification system according to the present invention;
FIG. 2 is a schematic diagram of a portion of the connections at the condenser of a forced circulation rectification system in accordance with the present invention;
FIG. 3 is a schematic diagram of a portion of a heater connection for a forced circulation rectification system in accordance with the present invention;
FIG. 4 is a cross-sectional view of a heater of a forced circulation rectification system in accordance with the present invention;
FIG. 5 is an enlarged view of A of FIG. 4 of a forced circulation rectification system in accordance with the present invention.
In the figure: 1. a support table; 2. a rectifying tower; 3. a feed inlet; 4. a first connecting pipe; 5. a circulation pump; 6. a second connecting pipe; 7. a heater; 8. a third connecting pipe; 9. cleaning the opening; 10. an air outlet pipe; 11. a condenser; 12. a discharge pipe; 13. a circulation pipe; 14. a coolant inlet; 15. a coolant outlet; 16. a spray head; 17. a channel; 18. and (5) filling the layer.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-5, a forced circulation rectification system comprises a support table 1 for supporting the whole device, a rectification tower 2 is disposed at the upper end of the support table 1, a feed inlet 3 is disposed on the surface of the rectification tower 2 for conveniently injecting raw materials into the rectification tower 2, the feed inlet 3 is fixedly connected to the outer surface of the rectification tower 2 and extends through the rectification tower 2, a first connection pipe 4 is connected to the bottom of the rectification tower 2, the first connection pipe 4 is fixedly connected to the bottom of the rectification tower 2 and extends through the rectification tower 2 to the inner side of the rectification tower 4, a safety valve is connected to the surface of the first connection pipe 4, the rectification tower 2 and the first connection pipe 4 can be closed by the safety valve, a circulation pump 5 is connected to the end of the first connection pipe 4, the raw materials can be conveyed into a heater 7 for heating and evaporation by the circulation pump 5, a second connection pipe 6 is disposed on the surface of the circulation pump 5, the first connecting pipe 4 is communicated with the second connecting pipe 6 through a circulating pump 5.
The end-to-end connection of second connecting pipe 6 has heater 7, utilize heater 7 to carry out the even heating to the raw materials, be favorable to the raw materials gasification, and second connecting pipe 6 extends to the inboard of heater 7, and be close to top department and be connected with shower nozzle 16 in the inside of heater 7, utilize shower nozzle 16 to atomize the raw materials, be convenient for its thermally equivalent, shower nozzle 16 and heater 7 inner wall fixed connection, and communicate with second connecting pipe 6, the inside of heater 7 is provided with filling layer 18, can increase the heated area of raw materials, filling layer 18 adopts the material that heat conductivility is better to fill, the lower extreme that the surface of filling layer 18 is located shower nozzle 16 is arc inclined plane structure, can prevent that the raw materials from accumulating inside heater 7, the inside of filling layer 18 is provided with passageway 17, passageway 17 runs through the inside of filling layer 18.
The lower extreme of heater 7 is connected with third connecting pipe 8, and third connecting pipe 8 communicates with rectifying column 2, and clearance mouth 9 has been seted up to the junction that the surface of third connecting pipe 8 is close to heater 7, and clearance mouth 9 runs through the inside that extends to third connecting pipe 8 to communicate with each other with third connecting pipe 8, and the lower extreme surface swing joint of clearance mouth 9 has the end cover, utilizes clearance mouth 9 conveniently to clear up third connecting pipe 8 inside.
The top end of the rectifying tower 2 is connected with an air outlet pipe 10, the air outlet pipe 10 penetrates through the inner side of the rectifying tower 2 and is fixedly connected with the rectifying tower 2, the tail end of the air outlet pipe 10 is connected with a condenser 11, the upper end and the lower end of the condenser 11 are respectively connected with a cooling liquid inlet 14 and a cooling liquid outlet 15, the cooling liquid inlet 14 and the cooling liquid outlet 15 both penetrate through the inner part of the condenser 11 and are communicated, cooling liquid in the condenser 11 can circularly flow through the cooling liquid inlet 14 and the cooling liquid outlet 15, the lower end of the condenser 11 is connected with a circulating pipeline 13, the tail end of the circulating pipeline 13 is connected with the rectifying tower 2 and is communicated with the same, the surface of the circulating pipeline 13 is connected with a discharge pipe 12 close to the lower end of the condenser 11, the discharge pipe 12 penetrates through the circulating pipeline 13, safety valves are respectively arranged on the surfaces of the discharge pipe 12 and the circulating pipeline 13, and the safety valve corresponding to the surface of the circulating pipeline 13 is arranged at the lower end of the discharge pipe close to the discharge pipe 12, the discharging of acetic anhydride is conveniently controlled or the cyclic distillation is continued by controlling the safety valve.
It should be noted that, the utility model is a forced circulation rectification system, when rectifying acetic anhydride, firstly, the crude acetic anhydride is injected into the rectification tower 2 through the feed inlet 3, then the safety valve on the surface of the first connecting pipe 4 is opened, the raw material is sent into the heater 7 through the circulating pump 5, in the process of entering the heater 7, the raw material is evenly entered into the channel 17 in a fog or filament shape by the spray nozzle 16, the gasification is more even, the gasified gas phase enters the condenser 11 through the gas outlet pipe 10, after the acetic anhydride is condensed, the safety valve on the surface of the circulating pipeline 13 can be closed, the safety valve on the surface of the discharge outlet is opened at the same time, so that the acetic anhydride can be discharged from the discharge outlet, or the safety valve on the surface of the discharge outlet is closed, and the safety valve on the surface of the circulating pipeline 13 is opened at the same time, so that the acetic anhydride enters the rectification tower 2 to continue rectification, and the rectification is more thorough, improving the purity of acetic anhydride.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A forced circulation rectification system comprising a support table (1), characterized in that: the upper end of brace table (1) is provided with rectifying column (2), feed inlet (3) have been seted up on the surface of rectifying column (2), and are connected with first connecting pipe (4) in the bottom of rectifying column (2), the end-to-end connection of first connecting pipe (4) has circulating pump (5), the surface of circulating pump (5) is provided with second connecting pipe (6), the end-to-end connection of second connecting pipe (6) has heater (7), the inside of heater (7) is provided with filling layer (18), the inside of filling layer (18) is provided with passageway (17), and is close to top department and be connected with shower nozzle (16) in the inside of heater (7), the lower extreme of heater (7) is connected with third connecting pipe (8), third connecting pipe (8) and rectifying column (2) intercommunication.
2. A forced circulation rectification system as claimed in claim 1 wherein: the upper end of the heater (7) is connected with the second connecting pipe (6), the second connecting pipe (6) extends to the inner side of the heater (7), the spray head (16) is fixedly connected with the inner wall of the heater (7) and communicated with the second connecting pipe (6), the lower end of the heater (7) is connected with the third connecting pipe (8), the filling layer (18) is filled with a material with better heat conduction performance, the surface of the filling layer (18) is located at the lower end of the spray head (16) and is of an arc inclined plane structure, and the channel (17) penetrates through the interior of the filling layer (18).
3. A forced circulation rectification system as claimed in claim 1 wherein: the surface of third connecting pipe (8) is close to the junction of heater (7) and has been seted up clearance mouth (9), and clearance mouth (9) run through the inside that extends to third connecting pipe (8) to communicate with each other with third connecting pipe (8), the lower extreme surface swing joint of clearance mouth (9) has the end cover.
4. A forced circulation rectification system as claimed in claim 1 wherein: feed inlet (3) fixed connection is at the surface of rectifying column (2), and runs through the inside that extends to rectifying column (2), first connecting pipe (4) fixed connection is in the bottom of rectifying column (2), and runs through the inboard that extends to rectifying column (2) to there is the relief valve on the surface connection of first connecting pipe (4), communicate through circulating pump (5) between first connecting pipe (4) and second connecting pipe (6).
5. A forced circulation rectification system as claimed in claim 1 wherein: the top of rectifying column (2) is connected with outlet duct (10), and outlet duct (10) run through the inboard that extends to rectifying column (2) to with rectifying column (2) fixed connection, the end-to-end connection of outlet duct (10) has condenser (11), the upper end and the lower extreme of condenser (11) are connected with coolant liquid inlet (14) and coolant liquid outlet (15) respectively, coolant liquid inlet (14) all run through the inside that extends to condenser (11) with coolant liquid outlet (15), and the three intercommunication.
6. A forced circulation rectification system as claimed in claim 5 wherein: the lower extreme of condenser (11) is connected with circulating line (13), the end and the rectifying column (2) of circulating line (13) are connected, and both communicate with each other, the lower extreme department that the surface of circulating line (13) is close to condenser (11) is connected with discharging pipe (12), discharging pipe (12) run through circulating line (13).
7. A forced circulation rectification system in accordance with claim 6 wherein: safety valves are mounted on the surfaces of the discharge pipe (12) and the circulating pipeline (13), and the safety valves corresponding to the surface of the circulating pipeline (13) are arranged at the lower end close to the discharge pipe (12).
8. A forced circulation rectification system as claimed in claim 1 wherein: rectifying column (2), second connecting pipe (6), heater (7), third connecting pipe (8) all inlay the inboard of brace table (1), and with brace table (1) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122172453.0U CN215653887U (en) | 2021-09-09 | 2021-09-09 | Forced circulation rectification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122172453.0U CN215653887U (en) | 2021-09-09 | 2021-09-09 | Forced circulation rectification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215653887U true CN215653887U (en) | 2022-01-28 |
Family
ID=79961802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122172453.0U Active CN215653887U (en) | 2021-09-09 | 2021-09-09 | Forced circulation rectification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215653887U (en) |
-
2021
- 2021-09-09 CN CN202122172453.0U patent/CN215653887U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 277000 Xueneng 2nd Road, 10 billion yuan industrial park, Xuecheng District, Zaozhuang City, Shandong Province Patentee after: Shandong Jiachi New Materials Co.,Ltd. Address before: 277000 Xueneng 2nd Road, 10 billion yuan industrial park, Xuecheng District, Zaozhuang City, Shandong Province Patentee before: Shandong Jiachi New Chemical Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Forced Circulation Distillation System Effective date of registration: 20230323 Granted publication date: 20220128 Pledgee: Shandong science and technology finance Company limited by guarantee Pledgor: Shandong Jiachi New Materials Co.,Ltd. Registration number: Y2023370000058 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220128 Pledgee: Shandong science and technology finance Company limited by guarantee Pledgor: Shandong Jiachi New Materials Co.,Ltd. Registration number: Y2023370000058 |